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中文摘要：
针对机载SAR转发式相参干扰效果图像中的干扰条纹，揭示了干扰条纹的形成规律，导出了条纹宽度、间隔以及斜率与干扰信号脉内特征之间的关系。系统分析了合成孔径雷达（SAR）转发式相参干扰原理，并建立相应的干扰时序模型。在分析SAR、干扰机对抗的空时关系的基础上，揭示了图像中干扰条纹的成因与规律：1）干扰机相对SAR处于大斜视位置；2）转发干扰信号的脉间时延大于SAR成像的聚焦深度；3）干扰条纹斜率随方位向处理视数的增加而加大。最后，给出了条纹宽度、间隔以及斜率等特征的解析表达式，并通过仿真实例验证了相关结论。
英文摘要：
The law behind the squint stripe in the image of SAR ECM test is unveiled, and the characteristics of the stripe are given. Firstly, the principle of the SAR repeater coherent jamming is introduced, and its jamming time-order control strategy is set up. Then, based on analysis to the space and time relationship between SAR and jammer, the causes forming the squint stripes are unveiled： 1 ） the jamming station is placed at large squint angle to SAR;2） the time delay between the two coherent jamming signals is larger than that of the focus depth of the SAR;and 3） the slope of the stripe changes with the looks of the SAR image. Experiments show the validity of the conclusion.
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